If you have any problems related to the accessibility of any content (or if you want to request that a specific publication be accessible), please contact us at email@example.com.
The effects of selected fabrication parameters on the magnetic properties of Sm-Co permanent magnets
AuthorWalkiewicz, John W
AdvisorWinston, J. S.
Mining and Metallurgical Engineering
AltmetricsView Usage Statistics
Studies were conducted to determine the effects of various parameters on the magnetic properties of sintered Sm-Co permanent magnets. The standard method of fabricating the magnets consisted of arc-melting, crushing and grinding the alloy, aligning and pressing the powder, and sintering the green compacts. Results indicated that the optimum composition was 36.7 + 0.3 wt pct Sm, 63.3 + 0.3 wt pct Co. This composition was obtained by blending together Sm^Co^ and SmCo5. The maximum values experimentally obtained were Hci = 27.4 k0e, Hc = 7=510 Oe, Br = 7,810 G, and (BH)max = 15.1 MGOe. The optimum sintering temperatures and grinding times for maximum Hci and (BH)max were determined. Lowering the max the grinding temperature from 0°C to -60°C resulted in a significant increase of magnetic properties.
Online access for this thesis was created in part with support from the Institute of Museum and Library Services (IMLS) administered by the Nevada State Library, Archives and Public Records through the Library Services and Technology Act (LSTA). To obtain a high quality image or document please contact the DeLaMare Library at https://unr.libanswers.com/ or call: 775-784-6945.
magnetic properties of sintered Sm-C0 permanent magnets
sintering green compacts
optimum sintering temperatures
optimum grinding times
Mackay Science Project
Showing items related by title, author, creator and subject.
.Yang, Kang (University of Nevada, Reno, 1994)Acid mine drainage (AMD) is a large environmental problem facing mining, mineral processing and coal preparation plants. Due to long term oxidation and weathering, sulfide bearing tailings and overburdens generate sulfuric ...
Development of the Magnetic Shielding and Rotational Stability Apparatus for use in the ARIADNE Project Dargert, Jordan E. (2018)The QCD axion is a particle that is postulated to solve the Strong-CP problem, but also could account for all of the Dark Matter currently being observed in the Universe. Our group is involved in developing an experiment ...
Experimental Investigation of the Properties and Phase State of Thick Aluminum Surfaces Pulsed to Megagauss Level Magnetic Field in a Z-Pinch Geometry Awe, Thomas J. (2009)Thermal transformation to plasma of an aluminum surface pulsed to multi-megagauss magnetic field is observed to occur when the surface field reaches a threshold level of 2.2 MG. Magnetic field is pulsed on the surface of ...